Double-glazed assemblies for windows and doors



July 25, 1961 F. x. LEISIBACH 2,993,242

' DOUBLE-GLAZED ASSEMBLIES FOR WINDOWS AND DOORS Filed Jan. 20, 1958 2 Sheets-Sheet 1 Ema. x.[E |s|'BAcH B INVENTOR WM, "W

July 25, 1961 I F. x. LEISIBACH 2,993,242

DOUBLE-GLAZED ASSEMBLIES FOR WINDOWS AND DOORS Filed Jan. 20, 1958 4 Tjl 2 Sheets-Sheet 2 21 Ff'anl X. LEISIBA H I NVENTOR WMJw w United States Patent 2,993,242 DOUBLE-GLAZED ASSEMBLIES FOR WINDOWS AND DOORS Franz Xaver Leisibach, Kastanienbaum, Lucerne, Switzerland, assignor to Firma Aluco-Bauelemente-Patentgesellschaft, Lucerne, Switzerland Filed Jan. 20, 1958, Ser. No. 710,005 Claims priority, application Switzerland Jan. 24, 1957 '3 Claims. (Cl. 2056.5)

The present invention relates to double-glazed assemblies for windows and doors, and has the primary object of providing an assembly of this kind which thermally insulates the interior well from the outside atmosphere, and is impermeable to rain, snow and wind.

It is another object of the invention to provide an assembly of the kind referred to, which is free from condensation between the double glazing.

It is yet another object of the invention to provide an assembly of the kind referred to which is free from mirror reflection eifects.

With these and other objects in view I provide a double-glazed assembly for windows and doors, comprising in combination: a frame, an outer glass pane, an inner glass pane and intermediate profile rails, the said frame containing U-profile metal rails having legs facing outwardly and a spacer web fixedly attached to the leg adjacent to the said outer and inner panes and between the edges thereof, the said intermediate profile rails being of T-profile having a web and a flange, and having a coating of thermally insulating material, inserted with the said web of the said T-profiles into the gap between the said legs of the said U-profile rails, and the flange of the said T-profiles forming an abutment for the said outer pane.

These and other features and objects of my said invention will be clearly understood from the following description of an embodiment and several modifications thereof, given by way of example with reference to the accompanying drawings, in which:

FIG. 1 is a section, partly broken away of a doubleglazed window according to the present invention,

FIG. 2 is a part-section of a modification thereof,

FIGS. 3, 4 and 5 each show a modification of the spacer web arranged between the outer and inner pane.

In FIG. 1 the lower outer window sill is denoted 11, the lower frame carrier timber 12, and the inner window sill 13 of the embodiment of a window. The upper window lintel is denoted 14 and the upper frame carrier timber 15. A drip plate attached to the outside of the lower frame carrier timber is denoted 16.

The metal frame rails for the two window panes 1a and 1i are denoted 2 as a whole.

The same are designed in principle as of U-profile shape, each groove slot between the legs 21 and 22 thereof being open outwardly, a spacer web being provided on the legs 21 facing towards the panes and firmly connected mechanically therewith between the panes 1a and 1i. According to FIG. 1 this spacer web has the shape of a single-piece square tube 3 projecting from the associated leg which tubes are provided with protruding flanks 31 and on the top surfaces with longitudinal grooves 32 which latter have the objejct of preventing phenomenon of mirror reflection.

The square tubes 3 may be provided on the top surfaces with holes or slots 33, so that the air trapped between the panes 1a and 1i may be dried by means of hydrophilous material placed in the square tube.

On the side of the interior of the room the frame rails 2 carry abutment plates 24 directed towards the frame carrier timbers 12 and 15, respectively.

The inner pane 1i is pressed according to FIG. 1 by ice a cover rail 25 against the inner flank of the spacer tube 3.

The outer pane 1a is pressed by the inside of the transverse leg 41 of a T-profile bar 4, enveloped with insulating synthetic material, against the outer flank of the spacer tube 3, the longitudinal leg 42 thereof being inserted into the gap between the two legs 21 and 22 ofthe frame, and secured there by the aid of screws 43. The mass of putty between the panes and the components clamping the same fast is denoted by reference numeral 5.

The whole glazing assembly including the frame rails 2 and thepanes 1a and 1i is completely pre-assembled and is inserted as a whole between the frame carrier timbers 12, 15 and fixed therein.

There does not exist any sort of heat conductive metal bridge between the components impinged upon by the ambient atmosphere outside and the components exposed to the air of the interior, which fact offers great advantages as compared with the known designs.

In the modification according to FIG. 2 all components corresponding to those of FIG. 1 are denoted by the same reference characters.

Differences exist only as regards the formation of the spacer web, which here has an H-profile 6, as well as in that the outside of the frame profile leg 22 facing towards the frame carrier 12 is provided with profile grooves for the insertion of profiled abutment rails 26 and 27, respectively.

The abutment rail 26 provides a support connection between the drip plate 17 and the frame rail, and for the prevention of heat conduction it is designed as a profile rail enveloped with insulating synthetic material.

According to the embodiment of FIG. 3 the spacer web 7 has an inverted U-shaped profile, according to FIG. 4, a T-profile shape 8, while according to FIG. 5 the frame leg 21 comprises grooves for the insertion of the dove tail ridge of a rectangular profile tube 9.

While I have described herein and illustrated in the accompanying drawings what may be considered typical and particularly useful embodiments of my said invention, I wish it to be understood that I do not limit myself to the particular details and dimensions described and illustrated, for obvious modifications will occur to a person skilled in the art.

What I claim as my invention and desire to secure by Letters Patent, is:

1. A frame construction for a double glazed Window consisting essentially of a frame member having a U- shaped cross section with the legs of the U projecting transversely to the plane of the frame, a spacer member on the leg which is innermost in the frame, said spacer member projecting into the space defined by the frame, said spacer member having grooves therein on the surfaces thereof parallel to the plane of the frame, a first covering strip removably mounted on said leg and having a groove in the face thereof opposed to said spacer tube, and a second T-shaped covering strip of insulating material positioned between the legs of the U and having a portion of the cross member of the T extending into the area defined by the frame, said portion having a groove in the surface thereof opposed to said spacer member, whereby a pane of glass may be mounted between said portion and said spacer member and a pane of glass may be mounted between said spacer member and said first covering strip and said grooves form space for elastic mounting and sealing material.

2. A frame construction as claimed in claim 1 in which said T-shaped covering strip is a metal strip having a T- shaped cross section and which is covered with an insulating material.

3. A frame construction as claimed in claim 1 in which References Cited in the file of this patent UNITED STATES PATENTS 2,084,103 Miller June 15, 1937 2,088,738 Fox Aug. 3, 1937 10 2,128,870 Woelfel Aug. 30, 1938 2,129,072 Rutishauser Sept. 6, 1938 4 Nelson May 9, 1939 Owen Aug. 1, 1939 Stroud Aug. 15, 1939 Haven et a1 Mar. 18, 1941 Woelfel Dec. 16, 1941 Colleran Oct. 16, 1943 Bobel Nov. 15, 1955 Persson Apr. 28, 1959 FOREIGN PATENTS Great Britain Nov. 24, 1939 Belgium June 14, 1952 Switzerland Dec. 16, 1955 

